On the Performance of NOMA Networks Supported by RIS in a Cooperative Environment

This paper consider a reconfigurable intelligent surface (RIS)-assisted non-orthogonal multiple access (NOMA) system in the cooperative scenarios. The RIS is deployed to assist far user under severe channel fading conditions. Near user act as cooperative relays in network, providing more options for...

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Bibliographic Details
Published in2023 International Conference on Ubiquitous Communication (Ucom) pp. 41 - 45
Main Authors Huang, Haiyan, Li, Xiang, Zhang, Nina, Liang, Linlin, Zhang, Xueiun, Li, Yahong
Format Conference Proceeding
LanguageEnglish
Published IEEE 07.07.2023
Subjects
Collaboration
cooperative technology
Fading channels
Nakagami-m fading
NOMA
non-orthogonal multiple access
outage probability
Power system reliability
Probability
Quality of service
reconfigurable intelligent surface
System performance
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Summary:This paper consider a reconfigurable intelligent surface (RIS)-assisted non-orthogonal multiple access (NOMA) system in the cooperative scenarios. The RIS is deployed to assist far user under severe channel fading conditions. Near user act as cooperative relays in network, providing more options for the establishment of far user communication links. We derived the exact outage probabilities of the network under the assumption of Nakagami-m fading in the channel. Furthermore, the asymptotic expression of outage probability is derived and the factors affecting the diversity order of the system are found.
DOI:10.1109/Ucom59132.2023.10257598